| 2026 |
| 10/23 | 195 | 197 | 195 | 197 | 0% | 13,100 | - | -8.8% |
| 10/22 | 198 | 198 | 196 | 197 | -1.01% | 7,100 | - | -9.22% |
| 10/21 | 197 | 199 | 196 | 199 | 0% | 8,200 | - | -9.13% |
| 10/20 | 200 | 201 | 198 | 199 | -1% | 10,300 | - | -9.55% |
| 10/19 | 201 | 201 | 197 | 201 | 0% | 10,300 | - | -9.05% |
| 10/16 | 199 | 205 | 199 | 201 | 0% | 10,700 | - | -9.46% |
| 10/15 | 195 | 204 | 195 | 201 | -3.83% | 46,600 | - | -9.87% |
| 10/14 | 216 | 216 | 209 | 209 | +0.48% | 3,100 | - | -6.7% |
| 10/13 | 207 | 210 | 204 | 208 | +0.48% | 6,100 | - | -7.56% |
| 10/09 | 210 | 212 | 207 | 207 | -2.36% | 11,200 | - | -8.41% |
| 10/08 | 221 | 222 | 211 | 212 | -4.93% | 27,300 | - | -6.19% |
| 10/07 | 225 | 232 | 223 | 223 | -1.33% | 16,600 | - | -1.76% |
| 10/06 | 224 | 231 | 223 | 226 | +0.89% | 15,100 | - | -0.44% |
| 10/05 | 224 | 227 | 222 | 224 | 0% | 12,300 | - | -1.32% |
| 10/02 | 225 | 231 | 221 | 224 | -0.88% | 27,200 | - | -1.32% |
| 10/01 | 227 | 232 | 224 | 226 | +0.89% | 43,100 | - | -0.44% |
| 09/30 | 228 | 241 | 218 | 224 | -1.75% | 229,200 | - | -1.32% |
| 09/29 | (IR情報)11:30 国立教育政策研究所「国際調査(TIMSS)実施関連業務一式」の受注に関するお知らせ |
| 09/29 | 211 | 298 | 211 | 228 | +4.59% | 1,101,800 | - | +0.44% |
| 09/28 | 229 | 248 | 217 | 218 | -1.36% | 131,200 | - | -3.54% |
| 09/25 | (IR情報)16:00 連結子会社に対する債権放棄に関するお知らせ |
| 09/25 | 220 | 225 | 220 | 221 | -0.45% | 8,200 | - | -1.78% |
| 09/24 | 222 | 225 | 221 | 222 | +1.83% | 14,500 | - | -1.33% |
| 09/18 | 227 | 232 | 218 | 218 | -6.03% | 20,000 | - | -2.68% |
| 09/17 | 234 | 234 | 225 | 232 | -0.85% | 14,800 | - | +3.57% |
| 09/16 | 242 | 242 | 227 | 234 | -2.09% | 14,300 | - | +4.93% |
| 09/15 | 242 | 242 | 235 | 239 | -1.65% | 14,100 | - | +7.66% |
| 09/14 | (IR情報)10:50 教育測定研究所、大学入試学会「第3回大会」へ協賛 ~「多様化時代の入試設計」をテーマに2026年9月26日・27日開催。学術研究と教育現場の実践を支援~ |
| 09/14 | 235 | 248 | 231 | 243 | +3.4% | 61,100 | - | +9.95% |
| 09/11 | 220 | 236 | 217 | 235 | +6.82% | 41,100 | - | +6.82% |
| 09/10 | (IR情報)14:50 教育測定研究所、「海外の学力調査におけるフィードバックの方法」を発表 ~「日本テスト学会第24回大会」(9月14日・15日開催)にて~ |
| 09/10 | (IR情報)10:50 「第4回 全国高校生政策甲子園」に協賛 ~高校生の政策提言への挑戦を応援。教育サービスを通じて次世代の学びを支援~ |
| 09/10 | 227 | 232 | 217 | 220 | -2.65% | 21,700 | - | +0.46% |
| 09/09 | 229 | 237 | 226 | 226 | -0.88% | 19,100 | - | +3.2% |
| 09/08 | (IR情報)10:50 全国 1,500 団体超の知見をもとに、教育測定研究所が英検Jr.(R)オンライン版の団体向け情報サイトを新設 |
| 09/08 | 230 | 238 | 228 | 228 | -1.72% | 18,300 | - | +4.59% |
| 09/07 | 224 | 235 | 223 | 232 | +2.65% | 28,200 | - | +6.91% |
| 09/04 | 227 | 231 | 219 | 226 | -1.74% | 6,500 | - | +4.63% |
| 09/03 | 219 | 232 | 217 | 230 | +3.6% | 18,400 | - | +6.98% |
| 09/02 | 223 | 228 | 220 | 222 | -2.63% | 10,000 | - | +3.74% |
| 09/01 | 223 | 229 | 223 | 228 | +1.33% | 8,600 | - | +6.54% |
| 08/31 | 223 | 230 | 222 | 225 | 0% | 8,100 | - | +5.63% |
| 08/28 | (IR情報)16:00 代表取締役の異動及び新経営体制に関するお知らせ |
| 08/28 | 227 | 232 | 224 | 225 | -1.75% | 10,600 | - | +6.13% |
| 08/27 | 230 | 231 | 222 | 229 | +1.78% | 16,800 | - | +8.53% |
| 08/26 | 228 | 232 | 224 | 225 | -0.88% | 38,900 | - | +7.66% |
| 08/25 | 212 | 228 | 211 | 227 | +5.09% | 44,400 | - | +9.13% |
| 08/24 | 220 | 220 | 214 | 216 | -0.92% | 11,800 | - | +4.85% |
| 08/21 | 205 | 218 | 205 | 218 | +4.81% | 26,900 | - | +5.83% |
| 08/20 | 209 | 209 | 200 | 208 | +1.96% | 22,200 | - | +1.46% |
| 08/19 | 200 | 207 | 200 | 204 | +1.49% | 11,000 | - | 0% |
| 08/18 | 205 | 210 | 199 | 201 | -1.95% | 22,200 | - | -1.47% |
| 08/17 | 217 | 217 | 194 | 205 | -8.07% | 117,500 | - | +0.49% |
| 08/14 | (IR情報)16:00 2026年9月期第3四半期決算説明資料 |
| 08/14 | (IR情報)16:00 2026年9月期第3四半期決算短信〔日本基準〕(連結) |
| 08/14 | 219 | 230 | 213 | 223 | +5.19% | 134,400 | - | +9.85% |
| 08/14 | (空売り報告)Barclays Capital Securities Ltd 40,200株(0.39%)-0.18%義務消失 |
| 08/13 | 215 | 223 | 208 | 212 | -1.4% | 41,300 | - | +5.47% |
| 08/13 | (空売り報告)Barclays Capital Securities Ltd 58,500株(0.57%)-0.09% |
| 08/12 | 213 | 215 | 209 | 215 | +0.47% | 17,000 | - | +7.5% |
| 08/10 | 209 | 214 | 204 | 214 | +2.39% | 13,900 | - | +7.54% |
| 08/07 | 214 | 214 | 200 | 209 | -2.79% | 34,400 | - | +5.56% |
| 08/06 | 203 | 216 | 203 | 215 | +0.94% | 19,100 | - | +9.69% |
| 08/06 | (空売り報告)JPM Securities Japan Co Ltd. 46,651株(0.45%)-0.1%義務消失 |
| 08/05 | 206 | 215 | 202 | 213 | +3.4% | 14,800 | - | +9.79% |
| 08/04 | 206 | 219 | 206 | 206 | -0.96% | 30,500 | - | +7.29% |
| 08/04 | (空売り報告)JPM Securities Japan Co Ltd. 56,851株(0.55%)-0.14% |
| 08/04 | (空売り報告)Barclays Capital Securities Ltd 67,600株(0.66%)-0.12% |
| 08/03 | 190 | 217 | 183 | 208 | +0.48% | 64,700 | - | +8.9% |
| 07/31 | 196 | 207 | 191 | 207 | +5.08% | 23,700 | - | +8.95% |
| 07/30 | (IR情報)16:00 営業外収益(受取保険金)の計上に関するお知らせ |
| 07/30 | 193 | 202 | 193 | 197 | -3.9% | 9,500 | - | +4.79% |
| 07/29 | 208 | 208 | 196 | 205 | +0.99% | 12,500 | - | +9.63% |
| 07/29 | (空売り報告)JPM Securities Japan Co Ltd. 70,751株(0.69%)-0.1% |
| 07/28 | (IR情報)11:00 文部科学省における「令和8年度 学習指導要領の改訂を見据えた情報活用能力に関する調査研究」に関する業務受託のお知らせ |
| 07/28 | 207 | 213 | 195 | 203 | -2.4% | 43,300 | - | +9.14% |
| 07/27 | 210 | 210 | 200 | 208 | +4% | 17,300 | - | +11.83% |
| 07/24 | 196 | 200 | 191 | 200 | +2.56% | 12,300 | - | +7.53% |
| 07/23 | 194 | 196 | 192 | 195 | 0% | 2,900 | - | +4.84% |
| 07/22 | 194 | 201 | 190 | 195 | +0.52% | 34,200 | - | +4.84% |
| 07/21 | (IR情報)15:00 「EduLab 高校生インターンシップ 2026」開催報告 |
| 07/21 | 188 | 197 | 188 | 194 | +3.19% | 27,100 | - | +4.3% |
| 07/21 | (空売り報告)JPM Securities Japan Co Ltd. 81,551株(0.79%)-0.1% |
| 07/21 | (空売り報告)Barclays Capital Securities Ltd 80,200株(0.78%)-0.08% |
| 07/17 | 197 | 197 | 186 | 188 | -5.53% | 49,100 | - | +1.08% |
| 07/16 | 209 | 210 | 199 | 199 | -2.45% | 27,200 | - | +6.42% |
| 07/15 | 196 | 214 | 196 | 204 | +6.25% | 204,800 | - | +9.09% |
| 07/15 | (空売り報告)Barclays Capital Securities Ltd 88,400株(0.86%)-0.23% |
| 07/14 | 204 | 210 | 192 | 192 | -4.95% | 54,800 | - | +2.67% |
| 07/14 | (空売り報告)JPM Securities Japan Co Ltd. 91,951株(0.89%)-0.09% |
| 07/13 | 189 | 205 | 186 | 202 | +8.6% | 38,800 | - | +8.02% |
| 07/13 | (空売り報告)Barclays Capital Securities Ltd 111,700株(1.09%)-0.08% |
| 07/10 | 184 | 188 | 183 | 186 | +1.09% | 4,400 | - | -0.53% |
| 07/09 | 181 | 188 | 180 | 184 | 0% | 48,500 | - | -2.13% |
| 07/09 | (空売り報告)JPM Securities Japan Co Ltd. 100,651株(0.98%)-0.09% |
| 07/08 | 190 | 193 | 178 | 184 | -2.65% | 52,200 | - | -2.65% |
| 07/07 | 181 | 189 | 181 | 189 | +3.85% | 28,100 | - | -0.53% |
| 07/06 | 175 | 187 | 175 | 182 | +5.2% | 64,400 | - | -4.71% |
| 07/06 | (空売り報告)JPM Securities Japan Co Ltd. 109,551株(1.07%)-0.12% |
| 07/06 | (空売り報告)Barclays Capital Securities Ltd 120,500株(1.17%)-0.03% |
| 07/03 | 173 | 178 | 172 | 173 | 0% | 40,900 | - | -9.9% |
| 07/03 | (空売り報告)モルガン・スタンレーMUFG証券 50,720株(0.49%)-0.1%義務消失 |
| 07/02 | (IR情報)14:00 AIが個別フィードバック!指導者の負担を軽減する「UGUIS.AI」、英検(R)スピーキング対策機能を正式提供開始 |
| 07/02 | 170 | 173 | 169 | 173 | +1.76% | 26,500 | - | -11.28% |
| 07/01 | 168 | 171 | 166 | 170 | +1.19% | 25,500 | - | -14.14% |
| 06/30 | (IR情報)16:00 非上場の親会社等の決算に関するお知らせ |
| 06/30 | 172 | 177 | 167 | 168 | -1.75% | 65,700 | - | -16.42% |
| 06/30 | (空売り報告)JPM Securities Japan Co Ltd. 122,051株(1.19%)-0.1% |
| 06/29 | 174 | 174 | 169 | 171 | +0.59% | 34,200 | - | -16.59% |
| 06/29 | (空売り報告)Barclays Capital Securities Ltd 123,400株(1.2%)+0.08% |
| 06/26 | 175 | 175 | 166 | 170 | 0% | 52,900 | - | -18.27% |
| 06/26 | (空売り報告)モルガン・スタンレーMUFG証券 60,620株(0.59%)-0.1% |
| 06/25 | 181 | 181 | 165 | 170 | -3.95% | 107,600 | - | -19.81% |
| 06/25 | (空売り報告)Barclays Capital Securities Ltd 115,100株(1.12%)+0.14% |
| 06/24 | 186 | 187 | 176 | 177 | -4.32% | 101,100 | - | -18.06% |
| 06/24 | (空売り報告)Barclays Capital Securities Ltd 101,100株(0.98%)+0.14% |
| 06/23 | 194 | 196 | 183 | 185 | -5.61% | 118,600 | - | -15.53% |
| 06/23 | (空売り報告)Barclays Capital Securities Ltd 86,800株(0.84%)+0.17% |
| 06/22 | 200 | 201 | 193 | 196 | -2% | 55,800 | - | -12.5% |
| 06/19 | 194 | 201 | 194 | 200 | +3.09% | 53,900 | - | -12.66% |
| 06/18 | 211 | 231 | 192 | 194 | -4.43% | 280,200 | - | -17.09% |
| 06/18 | (空売り報告)Barclays Capital Securities Ltd 69,300株(0.67%)+0.09% |
| 06/17 | 199 | 211 | 199 | 203 | +2.01% | 33,900 | - | -15.06% |
| 06/17 | (空売り報告)Barclays Capital Securities Ltd 59,600株(0.58%)-0.02% |
| 06/16 | 200 | 201 | 197 | 199 | -1.49% | 24,000 | - | -18.11% |
| 06/15 | 198 | 204 | 198 | 202 | +3.06% | 18,600 | - | -18.22% |
| 06/12 | 199 | 199 | 196 | 196 | -1.01% | 17,000 | - | -21.91% |
| 06/12 | (空売り報告)モルガン・スタンレーMUFG証券 71,220株(0.69%)-0.1% |
| 06/11 | 197 | 209 | 196 | 198 | -1% | 37,900 | - | -22.96% |
| 06/10 | 201 | 203 | 197 | 200 | -1.48% | 57,900 | - | -23.08% |
| 06/10 | (空売り報告)JPM Securities Japan Co Ltd. 132,351株(1.29%)-0.08% |
| 06/10 | (空売り報告)Barclays Capital Securities Ltd 61,600株(0.6%)再IN |
| 06/09 | 208 | 208 | 201 | 203 | 0% | 37,200 | - | -22.81% |
| 06/08 | 210 | 210 | 202 | 203 | -3.33% | 37,500 | - | -23.68% |
| 06/08 | (空売り報告)モルガン・スタンレーMUFG証券 81,720株(0.79%)-0.05% |
| 06/05 | 207 | 215 | 207 | 210 | +1.45% | 47,800 | - | -21.93% |
| 06/05 | (空売り報告)モルガン・スタンレーMUFG証券 86,020株(0.84%)-0.1% |
| 06/04 | 212 | 213 | 207 | 207 | -3.72% | 53,600 | - | -23.33% |
| 06/04 | (空売り報告)Nomura International plc 46,702株(0.45%)-0.08%義務消失 |
| 06/03 | 235 | 235 | 213 | 215 | -1.83% | 116,500 | - | -20.66% |
| 06/02 | 203 | 257 | 201 | 219 | +8.96% | 625,500 | - | -19.49% |
| 06/02 | (空売り報告)Nomura International plc 54,314株(0.53%)-0.22% |
| 06/02 | (空売り報告)モルガン・スタンレーMUFG証券 96,620株(0.94%)-0.13% |
| 06/01 | 237 | 239 | 201 | 201 | -16.25% | 437,200 | - | -26.1% |
| 06/01 | (空売り報告)Nomura International plc 77,393株(0.75%)-0.33% |
| 05/29 | 244 | 248 | 238 | 240 | -2.83% | 27,100 | - | -12.09% |
| 05/29 | (空売り報告)Nomura International plc 110,593株(1.08%)-0.11% |
| 05/29 | (空売り報告)モルガン・スタンレーMUFG証券 109,820株(1.07%)-0.12% |
| 05/26 | (空売り報告)JPM Securities Japan Co Ltd. 140,851株(1.37%)-0.08% |
| 05/25 | (空売り報告)JPM Securities Japan Co Ltd. 148,551株(1.45%)-0.11% |
| 05/25 | (空売り報告)Nomura International plc 122,394株(1.19%)-0.08% |
| 05/25 | (空売り報告)モルガン・スタンレーMUFG証券 121,920株(1.19%)-0.07% |